[green-dragon-migration] Add lldb jobs

[justice-adams-apple]

In This PR

• Update all existing lldb jobs

All lldb jobs have been updated to:

• Run on the correct labels
• upload artifacts to S3
• Set environment variables in environment closure when possible
• Setup python3 venv with all dependencies to build/test

This code has been tested on https://green.lab.llvm.org/

[justice-adams-apple]

cc @azharudd

[justice-adams-apple]

@JDevlieghere thanks for the review 🙏 , updated based on the comments